Team management not confident with fast bowlers , playing tests against West Indies

Pakistan Cricket team who is known for fast bowlers in recent past . Always marked as a sign of team producing great quick bowlers. But in recent series of test matches in the squad are Muhammad Amir , Wahab Riaz , Hasan Ali and new lad Abbas.
Wahab Riaz was not economical in t20 and was dropped after 1st ODI. Muhammad Amir is not in his form , he is known for. Only Hasan Ali is bowling his heart out. While Abbas is here for debut.
Team management is not seen positive with the performance of fast bowlers so they asked for Rahat Ali , which was rejected by Inzamam-ul-Haq , chief selector.
Now ahead of the test matches a big question is arising that whether , pacers will perform or not , a worrying sign for future of Pakistan Cricket.